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vdos.inc
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1999-04-30
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696b
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39 lines
;
;*** Low memory defines - used by VBIOS
DCA_START EQU 0501h ;DOS communication area start
DCA_LEN EQU 01FFh ; " " " length
DOSVEC_FIRST EQU 020h ;DOS-reserved vectors
DOSVEC_LAST EQU 03Fh ;initialized to -> IRET by VBIOS
;*** DOSDDEOL - End of DOS DD List Tag
;
DOSDDEOL EQU ( -1)
;*** DOSDDTYPE - DOS DD Header
;
; This structure defines a DOS DD Header
;
DefStruc ,_dosddtype
VPVOID ddd_vpdosddtype
USHORT ddd_usAttribute
USHORT ddd_pfnStrategy
USHORT ddd_pfnInterrupt
CHAR ddd_achName,,8
EndStruc DOSDDTYPE
DefType PDOSDDTYPE,dd
DefType VPDOSDDTYPE,dd
; PROCEDURES
VDHENTRY VDHSetDosDevice <VPDOSDDTYPE>